These include two counts of indecency with a child, eight of making an indecent photograph and one of possessing extreme pornography.

The jury was unable to reach a verdict on eight other charges against Young, who forfeited all his explicit material. He was handed a 21-month prison term suspended for two years, plus other suspended sentences of between eight and 12 months to run concurrently.

Both defendants, sentenced on June 12, were also made subject to 10-year sexual harm prevention orders.

The eldest victim, now 27, is considering asking the Justice Secretary to review the sentences.

Her mother said: “I don't know if she would go ahead with that because she’s been through too much distress as it is.”